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Journal Articles Journal of Automated Reasoning Year : 2021

Superposition with Lambdas


We designed a superposition calculus for a clausal fragment of extensional polymorphic higher-order logic that includes anonymous functions but excludes Booleans. The inference rules work on $\beta \eta$-equivalence classes of $\lambda$-terms and rely on higher-order unification to achieve refutational completeness. We implemented the calculus in the Zipperposition prover and evaluated it on TPTP and Isabelle benchmarks. The results suggest that superposition is a suitable basis for higher-order reasoning.
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hal-03485185 , version 1 (17-12-2021)



Alexander Bentkamp, Jasmin Blanchette, Sophie Tourret, Petar Vukmirović, Uwe Waldmann. Superposition with Lambdas. Journal of Automated Reasoning, 2021, 65 (7), pp.893-940. ⟨10.1007/s10817-021-09595-y⟩. ⟨hal-03485185⟩
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